Finishing machine



Oct. 12, 1937. A, CARLSON 2,095,595

FINISHING MACHINE Filed Aug. 25, 1935 2 Sheets-Sheet l IN VE NTOR.

BY $W/L MM ATTO NEY.

Oct. 12, 1937. A, CARLSON 2,095,595

FINISHING MACHINE Filed Aug. 25, 1935 2 Sheets-Sheet 2 INVENTOR.

M g-W ayt NIIY Patented Got. 12, 1937 STATES asses ATENT GFFE 17 Claims.

My invention relates to improvements in a finishing machine in which the object to be fin ished is actuated to move between and in contact with a pair of moving members; and the objects of my improvements are, first, to provide a finishing machine in which the object to be finished is engaged'by a pair'of moving members and is actuated to move by the pair of moving members between them; second, to provide a finishing machine having a member with a conical surface for engaging the object to be finished and to actuate the object with a feeding movement past a finishing wheel; third, to provide a frustum shaped member for engaging the object to be finished and having adjusting means whereby the frustum shaped member may be adjusted to have its axis located at different positions below the axis of the object being finished to provide varying rates of speed with which the frustum 2Q shaped member will actuate the object past a finishing member; fourth, to provide a finishing machine with a frustum member having means for adjusting its position in a vertical plane and in a horizontal plane relative to the member being finished; fifth, to provide a finishing machine with a pair of wheel members for engaging opposite sides of the member being finished, the pair of wheel members being adapted to finish the member and actuate the member with a feed movement; sixth, to provide a finishing machine having its mechanism, for actuating the member being finished with a feed movement, mounted on a pair of slide members; seventh, to provide a finishing machine with means for supporting the member being finished, this means being adjustably supported independently of the finishing mechanism to vary the supporting position of the supporting means relative to the member being finished; eighth, to provide a finishing machine having a feed actuating mechanism together with its driving mechanism movably supported on a pair of slide members, one supported on the other and each being adapted for movement in planes at right angles to one another; ninth, to provide a finishing machine having an antifriction mechanism for rollably engaging the member being finished; tenth, to provide a finishing machine having a resiliently actuated mechanism rollably engaging the member being finished; eleventh, to provide finishing machine having means for positioning the member to be finished and to further allow the finishing member to engage the member to be finished with a relative light contact or engagement to provide for a minimum amount of material being removed from the member in the finishing operation; twelfth, to provide a finishing machine having means for engaging and positioning the member to be finished and incorporating an anti friction bearing assembly for the engaging member; and 5 thirteenth, to provide a finishing machine having a rollably mounted member engaging the member being finished to provide uniformity of pressure of the member being finished against the finishing member. 10

I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a front elevation of the finishing machine; Fig. 2, a plan View of the finishing machine; Fig. 3, an end view of the finishing machine; Fig. 4, a sectional view taken on the line 4-4, Fig. 1; Fig. 5, a sectional view taken on the line 5-5, Fig. 2; Fig-6, a partial end View of the feed mechanism disclosing a pulley member without its enclosing housing; Fig. 7, a sectional View 20 of the frustum member support mechanism taken on the line '|'l, Fig. 3; Fig. 8, an end view of the resiliently actuated means for engaging and positioning the member to be finished in relation to the frustum member; Fig. 9, a plan view of the mechanism disclosed in Fig. 8; and Fig. 10, a sectional view of the anti-friction assembly unit utilized in the mechanism disclosed in Figs. 8 and 9, said sectional view being taken on the line I0l0, Fig. 8. 30

Similar numerals refer to similar parts throughout the several views.

The finishing machine as herein described is so-called because of its adaptability for finishing round objects such as tubes, and shafts, a tube being disclosed at I, said tube l being finished by polishing, or buffing the outside cylindrical surface thereof, said finishing being similar to that disclosed in my United States application for Letters Patent, Serial No. 703,662, filed December 40 22, 1933, now Patent No. 2,059,724, dated Nov.

It will be readily noted that my finishing machine as hereinafter described will thus be particularly adapted for any such similar finishing 45 operations requiring the grinding, polishing, or buffing of cylindrical surfaces.

The grinding machine will be provided with a base 2 upon which is suitably mounted and supported the housing structure 3 which extends up- 5 wardly therefrom and is constructed as an enclosing housing for the electric motor assembly A and the driving mechanism operatively connected therewith as hereinafter more fully disclosed.

The housing structure 3 will form an enclosure 55 extending entirely around the electric motor assembly A and will be provided with an open portion 3 at its lower end and located at the rear of the machine, said open portion 4 extending downwardly below the point 4A to the base 2 as disclosed in Fig. 3 and providing necessary circulation of air to and from the housing structure 3, said circulation of air being caused more or less by the operation of the electric motor assembly A and its operatively connected mechanism. Also the wall 5 at the rear of the housing structure 3 may be provided with an open portion 5A extending between its sides and if desired for its full length to facilitate the assembly of the electric motor assembly A and its operative mechanism. The cover 6 is used to cover such suitable opening 5A in the wall 5 to close said opening in the wall 5, the cover 6 being suitably'secured to the housing structure 3 by the screws 1.

On the upper wall 8 of the housing structure- 3 is suitably mounted the housing member 9, said housing member 9 being provided with suitable flanges to facilitate its securementto the upper Wall 8. The housing member 9 is provided with the boss portions l4 and [5 in which are respectively retained and assembled the bearing assemblies l5 and H. The shaft 20 extends through the housing member 9 and is revolvably supported in the bearing assemblies l6 and H. The shaft 26 is provided with a shouldered portion 2i on which is mounted the driven pulley 22, the driven pulley 22 being secured on the shoulder portion 2! by the nuts 23. The driven pulley 22 is provided with the hub portion 24' which is spaced from the bearing assembly [6 by the spacer 25. The pulley 22 is provided with a pair of grooves 26 which are frictionally engaged by the driving belts 21. The driving belts 2T engage and are driven by frictional contact in the grooves 28 of the driving pulley 29 which is suitably secured against the collar 30 which in turn is supported on the driving shaft 3| of the electric motor assembly A, the pulley 29 being secured thereon by the nut 32.

The electric motor assembly A is provided with the flange or foot portions 33 which are supported on and are secured to the bracket member 34 by the bolts 35 and the nuts 36. The bracket memher 3 2 may be provided with the bosses 3'! which are pivotally supported relative to the center of the shaft I55, the shaft I60 having its ends extended and supported within the side walls of the housing structure 3, the shaft I60 being located endwise by the collars ifil which are secured to the shaft H60 and engage the inside surfaces of'the housing structure 3. The shaft I52 is similarly supported in the side walls of the housing structure 3 and is located endwise by the collars 63. The member I64 is suitably secured around the shaft I62 and extends through the bracket member 34 and is secured thereto by the nuts E55, the nuts I65 being movably mounted on the member E54 to enable the bracket member 34 to be adjustably and pivotally moved relative to the shaft 555 to provide for the adjustment of the tension of the belts 21.

The shaft 20 is further provided with a shoulder portion 38 on which is suitably secured the buffing, polishing, or finishing wheel or member 39, the wheel or member 39 being suitably secured to the shoulder portion 38 as to be driven therewith. Also the buffing wheel 39 may be further secured by the clamping washers 40 and 4| the clamping washers 46 and El being secured in their clamping position by being pulled up tight by the nut 82 which may threadably engage the shoulder portion 33, the clamping washer ii being thereby pulled tight against the spacer member 63 which is interposed between the clamping washer ll and the bearing assembly i'i.

It is thus to be noted that the electric motor assembly A will drive the driving pulley 29 which in turn through the medium of the drive belts 2? will drive the driven pulley 22 which will in turn revolvably operate the shaft Zil together with the oufling wheel 39, which is secured thereto as above described.

The buffing wheel may be suitably chosen in accordance with the kind of finishing surface desired to be obtained on the tube i and the buffing wheelmay be oonventionaily constructed from discs of cotton or woolen fabric or other suitable material adapted for carrying the desired abrasive powders which are applied with the proper bonding material to the fabric of the discs. Obviously the type of buffing wheel will vary some- ,What with the type of finish desired. whether obtained by a grinding, buffing or polishing operation.

Across the front of the machine is suitably mounted the bracket or flange member M which is connected with the web portion by which the flange member 3 is secured to the front surface of the housing structure 3 and to the base 2. The flange member is further provided with the ledge, boss or housing portion 4'! which is provided with the bore 5% in which extends the shaft or stud member 38 which may revolvably engage the bore '16 of the boss or housing portion 37.

It is also to be understood that the flange portion as, the web portion 55, and the boss or housing portion t? may be incorporated in a separate casting or housing which may be supported on a floor or similar surface, independently of the base 2 when such installation is more economical or is desired for other reasons.

The boss 4i extends outwardly from the front face of the housing structure 3 and is provided with the clamp boss 5! which is provided with a slot 52 therethrough for providing a clamp struct ture that can be secured in its clamping position for fixedly securing the shaft 3-8 in its adjusted positions, the shaft 48 being adjustably moved by turning the nut member 53 which threadably engages the shaft 58 and is mounted i on the surface 5 5A of the boss 3?, the nut member 53 being provided with the openings 55 to permit a bar or shaft to be inserted therein for a lever or handle member.

The bracket or housing 54 may be formed integrally with the shaft or stud member 58 as disclosed, or the shaft or stud member 43 may be constructed separately and suitably secured to the bracket or housing 54 to support same. The bracket 5 is provided with the slideway or Vs 56 in which is movably mounted the slide 57 which is adapted to operate in a horizontal plane, the gib 58, together with the screws 59, being utilized in a conventional way to adjustably take up Wear between the slideway 55 and the slide 51. The slide 51 is secured to the horizontal flange of the bracket 62 by the screws 53. The bracket 52 is provided with the vertical or upstanding flange 64 which is provided with the slideway or vs 65 in which is movably mounted the slide 55 which is adapted to operate in a vertical plane and in a direction substantially at right angles to the direction of movement of the slide 5'1.

The slide 57 is provided with a chamber 51 into which extends the boss 68 suitably secured to the bracket 54, the chamber 61 providing operating clearance for the slide 51 relative to the boss 68.

v The shaft 09 is revolvably mounted in the slide 51 and threadably engages the boss 68 and provides means whereby the slide 51 may be slidably moved in the slideway 56 by the revolvable movement of the handwheel 10 suitably mounted on and secured to the shaft 69. If desired the slide 60 may be provided with a gib between it and the slideway 65 and actuated by screws similar to the construction disclosed relative to the slide 51 and slideway 50.

The slide 06 is provided with the recess or chamber 1I While the flange 64 is provided with the chamber 12 into which extends the boss 13 which is suitably secured to the vertical slide 66, the chamber 12 providing operating clearance for the boss 13 of the slide 66.

The flange 64 is provided with a boss 14 which has a bore 15 which forms abearing for the shaft 16 which is revolvably mounted therein and retained against longitudinal motion by the collar 11 suitably secured to the shaft 16 and engaging the inner end surface of the boss 14, the handwheel 18 being suitably secured at the upper'end of the shaft 16, as by threadably engaging the shaft 10, and by riveting as at 19, the handwheel 18 being adapted to suitably engage the outer end surface of the boss 14, the shaft 18 being further provided with the portion 80 which threadably engages the boss 13 to actuate the slide 66.

It is to be understood that the slide 68 will be fitted sufficiently snug in the slideway 65 so that the weight of the slide 60 and its operatively supported mechanism will not be fully supported by the portion 80 of the shaft 16.

The bracket 62 may be suitably reinforced by the ribs 02A and 62B. The slide 66 is further provided with a table portion 83 which is further provided with the slideway or Vs 81 in which is movably mounted the slide 85.

The table portion 83 of the slide 66 is suitably provided with the nut portion 82 which is suitably secured thereto and is engaged by the shaft 8| which may be threadably connected therewith. The shaft 8| is further connected with the hand wheel 84 provided with the handle A, the shaft 8| being revolvably mounted in the slide 85 which is movably mounted in the slideway or VS 81 of the table portion 83, the table portion 83 being provided with the recess or chamber 88 providing operating clearance over the nut portion 82.

It will thus be noted that a revolving motion of the hand wheel 84 will thus slidably move the slide 85 relative to the table portion 83 of the slide 50. The gib 89 may be installed between the slide 85 and the slideway 81 to take up wear, the gib 89 being adjustably actuated by the screws 90.

The bracket 9| is provided with the flange 92 which may be suitably secured to the slide 85 and is adapted to move with the slide as when operated by the hand wheel 84 as above described. The bracket 9| is provided with the boss 92A which in turn is provided with the clamping bosses 93 through which extend the clamping screw 94, the boss 92A being suitably slotted longitudinally through its length and through the clamping bosses 93 to permit the boss 92A to be clamped around the extension portion 95 of the housing 96 through which extends the shaft 91 which is revolvably supported in the bearing assembly 98 and 99. The housing 90 is provided with the enlarged portion I00 in which rotates the worm gear IOI which is suitably mounted on the shaft 91, the enlarged portion E09 of the housing 90 being provided with the bosses I02 in which is mounted the shaft I03 on which is secured the worm I04, the worm I04 operatively engaging and driving the worm gear IOI.

The enlarged portion I00 of the housing 90 is provided with the cover I which is secured thereto by the screws I00. The pulleys I01, I08 and I 09 may be individually mounted or mounted as a unit on the shaft I03 and suitably secured thereto so as to revolve therewith. The pulleys I01, I08 and I 00 are adapted to be engaged by the belt H0 which frictionally engages and is driven by the pulleys III, II 2 and H3 as disclosed. The pulleys III, H2 and H3 may be mounted individually or mounted as a unit on the shaft I IZA of the electric motor assembly B which is provided with the flange or foot portions H4 which permit the securement of the electric motor assembly B to the table or bracket I I5 by the screws I I0. Also it is to be noted that the housing 90 will be provided with the upright portion H1 in which is suitably mounted the table or bracket member II8, the table member II8 being secured by the screws II9A. The table H8 is provided with the ears H9 which form a yoke portion for supporting the shaft I20 on which is pivotally supported the table II5 by means of its ear portions I2! which engage the shaft I20.

It will thus be noted that the plate II5 may be pivotally moved around the center of the shaft I20 to provide means for shifting the operating center of the electric motor assembly B to provide the proper driving tension on the driving belt I I0. The table II 8 is further provided with the ears l22 which form a yoke portion in which is mounted the shaft I23 which provides for the pivotal motion for the adjusting member I 24 which extends through the plate I I5 and may be located in various adjusting positions by the nuts I25.

At the inner end of the shaft 91. is mounted the frustum member I26 or member provided with the conical surface I21, the conical surface I21 engaging the tubular member I.

The frustum member I26 is provided with the hub portion I28 to facilitate its securement so as to be driven by the shaft 91. The frustum member I20 may be constructed with an outer member I29 which is preferably constructed of leather or similar material, the member I29 forming the portion of the frustum E20 which is provided with the conical surface I21.

It is to be noted that as the electric motor assembly B operates and drives the pulleys II I, I I2 and I I3, the driving belt I I0 will in turn operatively drive the pulleys I01, I08 and I09 which will in turn drive the shaft I03 together with its worm I 04 which will in turn operatively drive the worm gear ml which will rotate the shaft 91 together with the frustum member I26 and its mentioned V portion in which the tube I rests.

The members I30 and I3I will be oppositely disposed about and secured to the plate or member I33. The plate member I 33 will be supported on the flange I34 of the boss or flange portion I35.

The boss portion I35 is provided with the slot I55 through which extends the bolt I31 which is mounted in the boss portion I38 of the lever member I39. The boss portion I36 is provided with the boss I49 through which extends the set screw I II which contacts the boss portion I35 and forms a reaction member for holding the member I35 in its adjusted position on the lever member I39, the member I35 thus being supported by the set screw I II against movement caused by the buffing wheel 39 when the buffing wheel 39 operativeiy engages the tube I, the buffing wheel 39 being operated in the direction as indicated by the arrow I42 in Fig. 3.

In order to further adjust the position of the plate I33 in its assembled position on the lever member I39, the lever member I39 is provided with the boss portion. I53 which is pivotally mounted on the shaft Hi4, the shaft I 66 being secured in the boss I 15 of the bracket 62 by the pin I96, the lever member I 39 being secured on the shaft I94 by the nut 51. The lever member I99 is provided with the ear portions I68 which form a yoke member on the lever member I39,

. the ear portions I96 providing support for the set screws I99 which are adapted to contact the lever I56 of the member I5I which is pivotally supported on the shaft I52 which is secured in the boss I53 of the bracket 62, the shaft I52 being secured therein by the pin I54.

It is to be noted that after the set screws I99 are adjusted to their desired position, the lever I59 will be clamped therebetween, the set screws I69 being secured in their adjusted position by the lock nuts I55. The member I5I is pivotally supported on the shaft I52 and to further secure the member I 5I in its adjusted position for holding the lever portion I59 in its adjusted position and in engagement with the screws I49, the bracket 62 is provided with the arm I52A to which is secured the boss I53 in which is mounted the set screw I56 which in turn is locked in its adjusted position by the nut I51. The set screw I56 contacts with the lever portion I56 which forms a portion of the member I5I. The set screw I56 thus absorbs any reaction due to the tendency of the lever member I39 to move from its adjusted position relative to the member I5I. The member I5I may be further secured on the shaft I52 by the nut I59.

The housing I13 may be suitably supported to enclose the pulleys I91, I93 and I09 together with the pulleys III, H2, and H3 and the belt H9, the housing I13 being closed by the cover I19 which is secured by the stud I15 and the wing nut I16.

It is to be noted that the member I33 will extend sufficiently on each side of the buffing wheel 39 to properly support the tube I. The additional members I16 and HI are each provided with the members I39 and I3I having the portions I32 for forming the above mentioned V portions for supporting the tube I.

In operation it is to be noted that when the plate or member I33 is utilized as disclosed in Fig. 4, the plate or member I33 will be located in between the angular portions I32 which are in contact with the tube I at its underside, the plate or member I33 being located substantially in vertical alignment with the axis of the tube I.

surface I21 of the frustum member I26 operatively engaging the outer surface of the tube I.

When the axis of the frustum member I26 is located below the axis of the tube I, the tube I will be located approximately on the horizontal center or axis of the b'uffing wheel 39 and above the axis of the frustum member I26.

When the frustum member I26 is being operated in the direction of the arrow I12 as disclosed in Fig. 1 and with the side of its conical surface I21 in contact with the outer surface of the tube I, the outer surfaces of the tube I will thus contact with the conical surface I21 at a point slightly above the axis of the frustum member I26 and to'the right of the axis of the frustum member I26 as viewed in Figs. 1 and 2, the axis of the frustum member I26 being located at an angle relative to the axis of the tube I and the axis of the buffing wheel 39, the above mentioned inclination of the axis of the frustum member I26 being dictated by the angle of the conical surface I21.

It is now to be especially noted that with the movement of the frustum member I26 as above described and in contact with the tube I that the tube I will be gradually moved to the left relative to the bufiing wheel 39, as viewed in Figs. 1 and 2, the speed of the longitudinal movement of the tube I, which corresponds to its feeding speed, being dictated obviously by the position of the axis of the frustum member I26 below the axis of the tube I. In other words, as the axis of the frustum member I26 is lowered below the axis of the tube I, the speed at which the tube I will move longitudinally past the buffing wheel 39 will be increased as the frictional point of contact of the outer surface of the tube I with the conical surface I21 of the frustum member I26 is thus adjusted above the axis of the frustum member I26, the above mentioned feeding speed being increased as the point of contact between the tube I and the conical surface I21 approaches a vertical center through the axis of the frustum member I26.

The tube I will be revolved by frictional contact with the wheel 39 in the V portions I32, the revolving motion of the wheel 39 in the direction of the arrow I92, Fig. 3, tending to always force the tube I downwardly into the V portions I32. Also the frustum member I26 by contacting the outer surface of the tube I will provide a frictional or reaction member to maintain the tube I in the V portions I32 and thus prevent the tube I from being forced out of the V portions I32 due to any horizontal force component which is developed by frictional contact with the wheel 39.

It is also to be noted that the wheel 39 will be operated at a considerably higher speed than the speed at which the frustum member I26 is operated, the speed of the frustum member I26 being designated by the required feeding speed of the tube I past the wheel 39, the feeding speed of the tube I being further designated by the position of the axis of the frustum member I 26 relative to the axis of the tube I as above described.

It is also to be noted that whereas a belt mechanism may be used in place of the wheel 39, such belt mechanism forming the finishing means in some machines as used conventionally at the present time, I have found that the wheel member such as 39 used in. conjunction with a frustum member such as I26 of my invention constitutes a much more economical and efiicient mechanism than those used heretofore in finishing machines.

Where it is desirable to remove a minimum amount of stock or material from the member I and consequent relatively light engagement or contact of the finishing member 39 with the member I is:necessitated,Iutilize auxiliary means for rollably engaging and contacting the member I which relieves the finishing member 39 from the necessity of positioning and maintaining the member I against the frustum member I26 and in the members I30 and I3I and provides uniformity of pressure of the tube I against its finishing member.

This auxiliary mechanism is disclosed as being utilized on the finishing machine equipped with the members I88 and ISI for supporting the tube I as disclosed in Figs. 1, 2 and 3 and with which it may be used advantageously to secure uniformity of pressure of the tube I against and in engagement with the frustum member I28. Also the auxiliary mechanism is disclosed more in detail in Figs. 8, 9 and 10 and in conjunction with a plate I33 for supporting the tube I which may be used in place of the members I30 and I3! when desired.

Also it is to be understood that the auxiliary mechanism although disclosed as being used in conjunction with a frustum member, is especially adapted for use with other kinds of finishin members such as belts, wheels, or similar means used for finishing purposes.

This auxiliary mechanism comprises the brackets or members I which are each provided with the portions I8! which extend through the plate I33 and are threadably engaged and secured by the nuts I82.

The brackets I88 are each provided with bores I83 in which is rotatably mounted the shaft I84 which is provided with the bent or upturned portion I85 which extends through and upon which is slidably mounted the bracket I85 in which is fixedly mounted the key I8! which engages the keyway I88 of the portion I85. 1

The bracket I85 is provided with the boss portions I89 which are slotted to enable the boss portions I89 to be clamped in any selected and adjusted position on the portion I85 by the screw I98.

The bracket I88 is provided with the bore I9I through which extends the portion I92 of the stud I93, the portion I92 being threadably engaged and secured in the bore I9l by the nut I94. The stud I93 is provided with the cylindrical portion I95 which fits the bore I96 of the inner race I9? of a conventional anti-friction bearing unit or assembly C which is provided with the outer race I98 and the ball members I99 between said race members I91 and I98. The stud I93 is provided with the head 200 which retains the bearing assembly on the cylindrical portion I95, the bracket I89 being offset, as at 20I, to clear the outer race I98.

The bracket 202 is suitably secured to the plate I33 as by welding or similar means and is provided with the bore 283 through which extends the stud 206. The bracket 2I5 is provided with a bore for receiving the shaft I84 and is further provided with the boss portions 204 which'are slotted to permit the bracket 2I5 to be clamped and secured to the shaft I84 by the screw 205. The stud 288 is provided with the ball end 201 which extends within the slot 208 and is swivelly or pivotally secured therein by the pin 209.

The spring or resilient member 2I2 surrounds the shank of the stud 206 and is retained thereon by the thumb or wing nut 2I3 which threadably engages the shank of the stud 256, the washers 2M being interposed between the spring BIZ and the flange 2 and also between the spring 2I2 and the wing nut 2I3.

In operation the spring 2I2 will tend to pull or pivotallymove the bracket 2I5, about the axis of the shaft I84, toward the flange 2II of the bracket 282, thus causing the shaft I84 together with its upturned portion I85 and the bracket I88 to be pulled or pivotally moved toward the member I, thus causing the outer race I98 of the bearing assembly 0 to rotatably engage the member I with any desired friction as selected by the position of the wing nut 2I3, on the shank of the stud 206, the thrust of the outer race I98 against the member I maintaining the member I between and in the V portion of the flanges I32 of the members I30 or on the plate or member I33 and against the frustum member I28 or similar finishing member, thus allowing the finishing member 39 to be set in engagement with the member I with any desired frictional contact and maintaining uniformity of pressure of the tube I against a finishing member and obtaining any desired feed movement of the tube I.

When the auxiliary means, as above described, is used to maintain the member I in its position during the finishing operation, it will be desirable to position the bearing assembly C opposite the thrust or contacting surface of the frustum member I28 or similar finishing member or in other words within the area of contact of the frustum member I28 or similar finishing member and the member I to be finished, this arrangement of the bearing assembly C and a frustum member being disclosed in Fig. 9.

' I claim:

1. In a machine for finishing a cylindrical member, the combination of a housing structure providing an enclosed chamber, a shaft revolvably mounted on said housing structure, an elec tric motor assembly suitably mounted within the enclosed chamber of said housing structure, driving means operatively connecting said electric motor assembly and said shaft, a finishing member mounted on said shaft and adapted to revolve therewith, a bracket suitably supported on said housing structure, a second bracket rotatably mounted in said first mentioned bracket, a slide member movably mounted on said second bracket, a third bracket supported on saidslide member and provided with a slideway, a second slide provided with a slideway, a third slide member movably mounted in the slideway of said second slide member, a shaft revolvably supported by said third slide member, a frustum member mounted on said last mentioned shaft and adapted to revolve therewith, said frustum member being provided with a conical surface, an electric motor assembly supported by said third slide member, driving means operatively connecting said second electric motor assembly and said second mentioned shaft, means for adjusting the position of said second slide in a vertical plane to provide various operative positions of said frustum member, means for moving said third slide to provide various operative positionsof said frustum member to and from the cylindrical member, a lever member pivotally supported on said third bracket, means for supporting the cylindrical member in. a position between said finishing member and said frustum member, said last mentioned means being supported on said lever member, and means for adjusting the pivotal position'of said lever member to provide various positions of said cylindrical member.

In a machine for finishing a cylindrical member, the combination of a slide member mounted to move in a horizontal plane, a second slide member mounted on said first mentioned slide member and adapted to move in a-vertical plane, a third slide member mounted on said second slide member and adapted to move in a horizontal plane, a frustum member revolvably mounted on said third slide member and engaging said cylindrical member, a finishing Wheel revolvably mounted and engaging said cylindrical member, a lever member pivotally mounted on said first mentioned slide member, means for supporting said cylindrical member on said lever member, and an adjusting means pivotally mounted on said first mentioned slide member and engaging said lever member to provide means for adjusting the position of said cylindrical member.

3. In a machine for finishing a cylindrical member, the combination of a revolvably mounted shaft member, a nut member engaging and adapted to adjustably actuate said revolvably mounted shaft in different adjusted positions, a slide member mounted on said revolvably mounted shaft to move in a horizontal plane, a second slide member mounted on said first mentioned slide member and adapted to move in a vertical plane, a third slide member mounted on said second slide member and adapted to move in a horizontal plane, afrustum member revolvably mounted on said third slide member and engaging said cylindrical member, a finishing wheel revolvably mounted and engaging said cylindrical member, a lever member pivotally mounted on said first mentioned slide member, means for supporting said cylindrical member on said lever member, and an adjusting means pivotally mounted on said first mentioned slide member and engaging said lever member to provide means for adjusting the position of said cylindrical member.

4. In a machine for finishing a cylindrical member, the combination of a revolvably mounted shaft member, a nut member engaging and adapted to adjustably actuate said revolvably mounted shaft in different adjusted positions, a slide member mounted on said revolvably mounted shaft to move in a horizontal plane, a second slide member mounted on said first mentioned slide member and adapted to move in a vertical plane, a third slide member mounted on said second slide member and adapted to move in a horzontal plane, a frustum member revolvably mounted on said third slide member and engaging said cylindrical member, a finishing wheel revolvably mounted and engaging said cylindrical member, a lever member pivotally mounted on said first mentioned slide member, means for supporting said cylindrical member on said lever member, and an adjusting means pivotally mounted on said first mentioned slide member and engaging said lever member to provide means for adjusting the position of said cylindrical member, and means for clamping said revolvably mounted shaft in different adjusted positions.

5. In a machine for finishing a cylindrical member, the combination of a structure provided with a bracket portion provided with a bore, a shaft member adjustably supported by said bracket portion and engaging the bore thereof,

a horizontal slide member movably supported on said shaft member, a vertical slide member movably supported on said horizontal slide member, a second horizontal slide member movably mounted on said vertical slide member, a frustum member operatively mounted on said second horizontal slide member and engaging said cylindrical member, means for supporting said cylindrical member, and a finishing member revolvably mounted on said structure and engaging said cylinder member.

6. In a machine for finishing a cylindrical member, the combination of three slide members movably mounted, two of said slide members being movably supported by the remaining slide member, said last mentioned slide members comprising a horizontal slide member mounted on a vertical slide member, a frustum member operatively mounted on said horizontal slide member and engaging said cylindrical member, means for supporting said cylindrical member, and finishing member operatively mounted and engaging said cylindrical member.

7. In a machine for finishing a cylindrical member, the combination of a slide member adjustably mounted to move in a horizontal plane, a bracket member provided with an upstanding flange having a slideway therein and extending substantially in a vertical plane, a second slide member adjustably mounted in the slideway of said bracket .member, said second slide member being further provided with a flange portion having a slideway extending substantially in a horizontal plane, a third slide member adjustably mounted in the slideway of said second slide member, a frustum member operatively supported on said third slide member and engaging said cylindrical member, means for supporting said cylindrical member, and a finishing member revolvably mounted and engaging said cylindrical member.

8. In a-machine for finishing a cylindrical member, the combination of three slide members movably mounted, said slide members comprising a horizontal slide member supporting a vertical slide member, said vertical slide member supporting a second horizontal slide member, a bracket member mounted on said first mentioned slide member, a frustum member operatively mounted on the third slide member and engaging said cylindrical member, means for supporting said cylindrical member, a finishing member operatively mounted and engaging said cylindrical member, and lever means for adjusting said means for supporting said cylindrical member to provide difierent positions of said cylindrical member, said last mentioned means being pivotally'mounted on said brack t member.

9. In a machine for finishing a cylindrical member, the combination of a plurality of slides movably mounted upon one another, a frustum member operatively mounted upon the uppermost of said slide members and engaging said cylindrical member, a lever member pivotally mounted on one of said slide members and supporting said cylindrical member, a second lever member pivotally mounted on one of said slide members and adapted to adjustably engage said first mentioned lever member to position said cylindrical member in difierent positions, and a finishing member mounted and engaging said cylindrical member.

10. In a machine for finishing a cylindrical member, the combination of three slide members movably mounted upon one another, the uppermost and lowermost slide members being adapted to move in parallel horizontal planes and substantially at right angles to the axis of said cylindrical member, the intermediate slide member being adapted to support the uppermost slide member and to move in a vertical plane, a frustum member operativelymounted upon the uppermost of said slide members and engaging said cylindrical member, a lever member pivotally mounted on one of said slide members and supporting said cylindrical member, a second lever member pivotally mounted on one of said slide members and adapted to adjustably engage said first mentioned lever member to position said cylindrical member in different positions, and a finishing member revolvably mounted and engaging said cylindrical member.

11. In a machine for finishing a cylindrical member, the combination of a slide member movably mounted to move in a horizontal plane, a bracket member mounted on said slide member and having an upright flange provided with a slideway together with a boss portion at the upper end thereof, said boss portion being provided ith a bearing bore, a second slide member movably mounted in the slideway of said upright flange and provided with a horizontal slideway, a shaft member revolvably mounted in the bearing bore of said boss portion of said upright flange and retained against longitudinal movement, said shaft member engaging and actuating said second slide member, a third slide member movably mounted in the slideway of said second slide member, a frustum member operatively mounted on said third slide member and engaging said cylindrical member, a finishing member revolvably mounted and engaging said cylindrical member, and means for supporting said cylindrical member.

12. In a machine for finishing a cylindrical member, the combination of a slide member movably mounted to move ina horizontal plane, a bracket member mounted on said slide member and having an upright flange provided with a slideway together with a boss portion at the upper end thereof, said boss portion being provided with a bearing bore, a second slide member movably mounted in the slideway of said upright flange and provided with a horizontal slideway, a shaft member revolvably mounted in the bearing bore of said boss portion of said upright flange and retained against longitudinal movement, said shaft member engaging and actuating said second slide member, a third slide member movably mounted in the slideway of said second slide member, a frustum member operatively mounted on said third slide member and engaging said cylindrical member, a finishing member revolvably mounted and engaging said cylindrical member, means for supporting said cylindrical member, and means for adjusting said first mentioned slide member in different positions in a vertical plane.

13. In a machine for finishing a cylindrical m mber, the combination of a slide member movably mounted to move in a horizontal plane, a bracket member mounted on said slide member and having an upright flange provided with a slideway together with a boss portion at the upper end thereof, said boss portion being provided with a bearing bore, a second slide mem ber movably mounted in the slideway of said upright flange and provided with a horizontal slideway, a shaft member revolvably mounted in the bearing bore of said boss portion of said upright flange and retained 'againstlongitudinal movement, said shaft member engaging and actuating said'second slide member, a third slide member movably mounted in the slideway of said second slide member, a frustum member operatively mounted on said third slide member, and engaging said cylindrical member, a finishing member revolvably mounted and engaging said cylindrical member, means for supporting said cylindrical member, means for adjusting said first mentioned slide member in difierent positions in a vertical plane, said means for support ing said cylinder member being pivotally mounted, and a pivotally mounted lever member adapted to adjustably position said last mentioned means to position said cylindrical member in different positions.

14. In a machine for finishing a cylindrical member, the combination of a frustum member revolvably mounted and engaging the cylindrical m mber, a finishing member revolvably mounted and engaging the cylindrical member, a plate member suitably mounted and supporting the cylindrical member, a pair of brackets secured to said plate member and each provided with a bore, a shaft rotatably mounted in the bores of said pair of brackets and provided with an upturned portion, an arm member adjustably mounted on the upturned portion of said shaft, a bearing assembly rotatably supported on said arm member and provided with an outer race member revolvably engaging the cylindrical member, a second arm member secured to said shaft and adapted to rotate therewith, a third bracket secured to said plate member, a stud swiv-elly mounted in said second arm member and extending through said third bracket, and a resilient member mounted on said stud and adapted to exert a thrust against said third bracket to force said outer race of said bearing assembly t engage the cylindrical member.

15. In a machine for finishing a cylindrical member, the combination of a frustum member revolvably mounted, a horizontal slide member supporting said frustum member, a vertical slide member supporting said horizontal slide ember, a second horizontal slide member supporting said vertical slide member and said first mentioned slide member together with said frustum member, said second horizontal slide member being provided with a pair of bores, shaft members fixedly secured in each of said bores of said second horizontal slide member, a lever member pivotally mounted on one of said shaft members and supporting said cylindrical member, a second lever member pivotally moimted on one of said shaft members and adjustably connected with said first mentioned lever member, a finishing member revolvably mounted and engaging said cylindrical member, and means for adjusting said second horizontal slide member together with its supported members in a vertical plane.

16. In a machine for finishing a cylindrical member, the combination of a movably mounted member engaging said cylindrical member to move said cylindrical member longitudinally past said movably mounted member, a plate member suitably mounted and having an edge surface adjacent said cylindrical member and provided with means for engaging and supporting said cylindrical member, a finishing member revolvably mounted and engaging said cylindrical member, a pair of brackets supported by said plate member, a shaft rotatably mounted in said pair of brackets and provided with a bent portion, a third bracket slidably mounted on said bent portion of said shaft, means for locking said third bracket in a fixed position on said bent portion of said shaft, a stud supported in said third bracket, a bearing assembly mounted on said stud and provided with an outer race member rotatably mounted and engaging said cylindrical memher to maintain said cylindrical member in engagement with said movably mounted member with uniform pressure.

17. In a machine for finishing a cylindrical member, the combination of a movably mounted member engaging said cylindrical member to move said cylindrical member longitudinally past said movably mounted member, a plate member suitably mounted and having an edge surface adjacent said cylindrical member and provided With means for engaging and supporting said cylindrical member, a finishing member revolvably mounted and engaging said cylindrical member, a pair of brackets supported by said plate member, a shaft rotatably mounted in said pair of brackets and provided with a bent portion, a third bracket slidably mounted on said bent portion of said shaft, means for locking said third bracket in a fixed position on said bent portion of said shaft, a stud supported in said third bracket,- abearing assembly mounted on said stud and provided withan outer race member rotatably'mounted and engaging said cylindrical member to maintain said cylindrical member in engagement with said 'movably mounted member with uniform pressure, a lever arm mounted on said shaft and adapted to rotate therewith, a fourth bracket mounted on said plate member and provided with a flange adjacent said lever arm, a second stud provided with a ball end swivelly mounted in said lever arm, said second stud extending through said flange of said fourth bracket, and resilient means mounted on said second stud and exerting a thrust against said flange of said fourth bracket to move said outer race of said bearing assembly to engage said cylindrical member with said uniform pressure.

GUSTAVE A. CARLSON. 

